Yealink CP920, Руководство администратора

Страница: 181 / 578

Administrator’s Guide for SIP-T2 /T3 /T4 /T5 /CP920 IP Phones
177
Parameter voice.cng <y0000000000xx>.cfg
Description It enables or disables the CNG (Comfortable Noise Generation) feature.
Permitted
Values
0 -Disabled
1 -Enabled
Default 1
Web UI Settings > Voice > Echo Cancellation > CNG
Jitter Buffer
Yealink phones support two types of jitter buffers: fixed and adaptive. A fixed jitter buffer adds the fixed delay to
voice packets. You can configure the delay time for the static jitter buffer on the phones. An adaptive jitter buffer is
capable of adapting the changes in the network's delay. The range of the delay time for the dynamic jitter buffer
added to packets can be also configured on the phones.
Topic
Jitter Buffer Configuration
Jitter Buffer Configuration
You can configure the mode of jitter buffer and the delay time for jitter buffer in the wired network or wireless net-
work.
The following table lists the parameters you can use to configure the jitter buffer.
Parameter voice.jib.adaptive <y0000000000xx>.cfg
Description It configures the type of jitter buffer in the wired network.
Permitted
Values
0 -Fixed
1 -Adaptive
Default 1
Web UI Settings > Voice > Jitter Buffer > Type
Parameter voice.jib.min <y0000000000xx>.cfg
Description
It configures the minimum delay time (in milliseconds) of the jitter buffer in the wired network.
Note : It works only if “voice.jib.adaptive” is set to 1 (Adaptive). The value of this parameter should be
less than or equal to that of “voice.jib.normal”.
Permitted
Values
Integer from 0 to 400
Default
60
Web UI
Settings > Voice > Jitter Buffer > Min Delay
Parameter
voice.jib.max <y0000000000xx>.cfg
Description
It configures the maximum delay time (in milliseconds) of the jitter buffer in the wired network.
Note : It works only if “voice.jib.adaptive” is set to 1 (Adaptive). The value of this parameter should be
greater than or equal to that of “voice.jib.normal”.
Permitted
Values
Integer from 0 to 400
Default 240